return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H9N (Butanenitrile, 2-methyl-)

using model chemistry: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-249.332579
Energy at 298.15K-249.342209
Nuclear repulsion energy219.066600
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3LYP/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3144 3033 17.45      
2 A 3135 3025 18.43      
3 A 3128 3018 38.66      
4 A 3117 3008 25.02      
5 A 3095 2987 1.71      
6 A 3067 2960 8.41      
7 A 3063 2955 19.04      
8 A 3054 2946 14.12      
9 A 3049 2942 1.07      
10 A 2342 2260 3.96      
11 A 1577 1522 5.52      
12 A 1569 1514 11.58      
13 A 1564 1509 10.75      
14 A 1561 1506 6.84      
15 A 1546 1491 1.32      
16 A 1468 1416 6.62      
17 A 1456 1405 7.97      
18 A 1407 1357 0.63      
19 A 1373 1324 0.59      
20 A 1362 1314 0.83      
21 A 1320 1273 0.07      
22 A 1211 1168 2.19      
23 A 1152 1111 10.61      
24 A 1147 1106 0.94      
25 A 1029 993 2.30      
26 A 1019 983 3.02      
27 A 989 954 6.67      
28 A 898 867 0.21      
29 A 834 804 2.08      
30 A 777 750 3.79      
31 A 611 590 0.32      
32 A 572 552 1.46      
33 A 403 389 0.57      
34 A 346 334 0.27      
35 A 284 274 0.31      
36 A 228 220 0.15      
37 A 221 214 1.17      
38 A 184 178 3.63      
39 A 87 84 1.13      

Unscaled Zero Point Vibrational Energy (zpe) 29192.0 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 28167.3 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3LYP/3-21G
ABC
0.21452 0.07294 0.05846

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.523 -0.303 0.123
N2 -2.600 -0.696 -0.083
C3 -0.044 1.653 -0.153
H4 -0.193 1.675 -1.237
H5 -0.794 2.294 0.319
H6 0.948 2.049 0.078
C7 2.324 -0.422 0.094
H8 2.446 -0.459 1.183
H9 3.013 -1.148 -0.351
H10 2.615 0.574 -0.254
C11 0.871 -0.759 -0.301
H12 0.748 -0.698 -1.389
H13 0.642 -1.787 0.000
C14 -0.166 0.195 0.366
H15 0.004 0.185 1.452

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6 C7 H8 H9 H10 C11 H12 H13 C14 H15
C11.16462.46702.74412.70433.41193.84874.11134.63824.24632.47392.75662.62821.46532.0824
N21.16463.47163.57023.51624.48894.93415.20765.63695.36953.47833.59323.42152.62983.1485
C32.46703.47161.09461.09401.09323.15763.52754.15032.87082.58322.77103.51081.55202.1746
H42.74413.57021.09461.77911.78093.53614.16864.36283.17222.81652.55743.77062.18223.0801
H52.70433.51621.09401.77911.77564.14104.33875.17563.86073.53223.77434.33842.19152.5231
H63.41194.48891.09321.78091.77562.82843.12363.83002.25022.83453.12063.84952.18272.5004
C73.84874.93413.15763.53614.14102.82841.09641.09511.09441.54242.18102.16802.57982.7554
H84.11135.20763.52754.16864.33873.12361.09641.77401.77742.18453.09092.53322.81442.5399
H94.63825.63694.15034.36285.17563.83001.09511.77401.77012.17722.53172.48033.52483.7520
H104.24635.36952.87083.17223.86072.25021.09441.77741.77012.19502.52793.08722.87443.1422
C112.47393.47832.58322.81653.53222.83451.54242.18452.17722.19501.09641.09601.55912.1713
H122.75663.59322.77102.55743.77433.12062.18103.09092.53172.52791.09641.76832.17073.0661
H132.62823.42153.51083.77064.33843.84952.16802.53322.48033.08721.09601.76832.17182.5309
C141.46532.62981.55202.18222.19152.18272.57982.81443.52482.87441.55912.17072.17181.0990
H152.08243.14852.17463.08012.52312.50042.75542.53993.75203.14222.17133.06612.53091.0990

picture of Butanenitrile, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C14 C3 109.663 C1 C14 C11 109.729
C1 C14 H15 107.745 N2 C1 C14 179.356
C3 C14 C11 112.261 C3 C14 H15 109.026
H4 C3 H5 108.761 H4 C3 H6 108.979
H4 C3 C14 109.871 H5 C3 H6 108.552
H5 C3 C14 110.641 H6 C3 C14 109.997
C7 C11 H12 110.350 C7 C11 H13 109.347
C7 C11 C14 112.568 H8 C7 H9 108.087
H8 C7 H10 108.448 H8 C7 C11 110.618
H9 C7 H10 107.883 H9 C7 C11 110.119
H10 C7 C11 111.573 C11 C14 H15 108.299
H12 C11 H13 107.529 H12 C11 C14 108.402
H13 C11 C14 108.501
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.377      
2 N -0.486      
3 C -0.525      
4 H 0.206      
5 H 0.210      
6 H 0.204      
7 C -0.562      
8 H 0.192      
9 H 0.200      
10 H 0.196      
11 C -0.346      
12 H 0.205      
13 H 0.211      
14 C -0.326      
15 H 0.243      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.601 1.225 0.444 3.830
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.774 -3.619 -0.817
y -3.619 -37.269 -0.126
z -0.817 -0.126 -36.749
Traceless
 xyz
x -10.765 -3.619 -0.817
y -3.619 4.992 -0.126
z -0.817 -0.126 5.773
Polar
3z2-r211.546
x2-y2-10.505
xy-3.619
xz-0.817
yz-0.126


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.409 0.429 0.245
y 0.429 7.106 0.103
z 0.245 0.103 6.237


<r2> (average value of r2) Å2
<r2> 200.004
(<r2>)1/2 14.142